https://sigrok.org/gitweb/?p=pulseview.git;a=patch;h=ae726b70a7ada9a4be5808e00f0c951318479684

From ae726b70a7ada9a4be5808e00f0c951318479684 Mon Sep 17 00:00:00 2001
From: Valentin Ochs <a@0au.de>
Date: Sat, 20 Jun 2020 16:01:27 +0200
Subject: [PATCH] Replace obsolete/deprecated Qt methods

---
 pv/subwindows/decoder_selector/subwindow.cpp |  2 +-
 pv/util.cpp                                  | 21 ++++++++++++++++++--
 pv/util.hpp                                  | 10 ++++++++++
 pv/views/trace/decodetrace.cpp               |  3 ++-
 pv/views/trace/ruler.cpp                     |  2 +-
 pv/widgets/timestampspinbox.cpp              |  2 +-
 6 files changed, 34 insertions(+), 6 deletions(-)

diff --git a/pv/subwindows/decoder_selector/subwindow.cpp b/pv/subwindows/decoder_selector/subwindow.cpp
index 94ed6f4b..2c65dcf2 100644
--- a/pv/subwindows/decoder_selector/subwindow.cpp
+++ b/pv/subwindows/decoder_selector/subwindow.cpp
@@ -185,7 +185,7 @@ QToolBar* SubWindow::create_toolbar(QWidget *parent) const
 int SubWindow::minimum_width() const
 {
 	QFontMetrics m(info_label_body_->font());
-	const int label_width = m.width(QString(tr(initial_notice)));
+	const int label_width = util::text_width(m, tr(initial_notice));
 
 	return label_width + min_width_margin;
 }
diff --git a/pv/util.cpp b/pv/util.cpp
index 897254e1..dfb8c72b 100644
--- a/pv/util.cpp
+++ b/pv/util.cpp
@@ -143,7 +143,7 @@ QString format_time_si(const Timestamp& v, SIPrefix prefix,
 	QString s;
 	QTextStream ts(&s);
 	if (sign && !v.is_zero())
-		ts << forcesign;
+		ts.setNumberFlags(ts.numberFlags() | QTextStream::ForceSign);
 	ts << qSetRealNumberPrecision(precision) << (v * multiplier);
 	ts << ' ' << prefix << unit;
 
@@ -169,7 +169,7 @@ QString format_value_si(double v, SIPrefix prefix, unsigned precision,
 	QString s;
 	QTextStream ts(&s);
 	if (sign && (v != 0))
-		ts << forcesign;
+		ts.setNumberFlags(ts.numberFlags() | QTextStream::ForceSign);
 	ts.setRealNumberNotation(QTextStream::FixedNotation);
 	ts.setRealNumberPrecision(precision);
 	ts << (v * multiplier) << ' ' << prefix << unit;
@@ -279,5 +279,22 @@ vector<string> split_string(string text, string separator)
 	return result;
 }
 
+/**
+ * Return the width of a string in a given font.
+ *
+ * @param[in] metric metrics of the font
+ * @param[in] string the string whose width should be determined
+ *
+ * @return width of the string in pixels
+ */
+std::streamsize text_width(const QFontMetrics &metric, const QString &string)
+{
+#if QT_VERSION >= QT_VERSION_CHECK(5, 11, 0)
+	return metric.horizontalAdvance(string);
+#else
+	return metric.width(string);
+#endif
+}
+
 } // namespace util
 } // namespace pv
diff --git a/pv/util.hpp b/pv/util.hpp
index fab29a14..49ae04b2 100644
--- a/pv/util.hpp
+++ b/pv/util.hpp
@@ -30,6 +30,7 @@
 
 #include <QMetaType>
 #include <QString>
+#include <QFontMetrics>
 
 using std::string;
 using std::vector;
@@ -143,6 +144,15 @@ QString format_time_minutes(const Timestamp& t, signed precision = 0,
 
 vector<string> split_string(string text, string separator);
 
+/**
+ * Return the width of a string in a given font.
+ * @param[in] metric metrics of the font
+ * @param[in] string the string whose width should be determined
+ *
+ * @return width of the string in pixels
+ */
+std::streamsize text_width(const QFontMetrics &metric, const QString &string);
+
 } // namespace util
 } // namespace pv
 
diff --git a/pv/views/trace/decodetrace.cpp b/pv/views/trace/decodetrace.cpp
index 67c9b1c4..93c7c5a9 100644
--- a/pv/views/trace/decodetrace.cpp
+++ b/pv/views/trace/decodetrace.cpp
@@ -161,7 +161,8 @@ DecodeTrace::DecodeTrace(pv::Session &session,
 
 	// Determine shortest string we want to see displayed in full
 	QFontMetrics m(QApplication::font());
-	min_useful_label_width_ = m.width("XX"); // e.g. two hex characters
+	// e.g. two hex characters
+	min_useful_label_width_ = util::text_width(m, "XX");
 
 	default_row_height_ = (ViewItemPaintParams::text_height() * 6) / 4;
 	annotation_height_ = (ViewItemPaintParams::text_height() * 5) / 4;
diff --git a/pv/views/trace/ruler.cpp b/pv/views/trace/ruler.cpp
index 555794fc..83ffed28 100644
--- a/pv/views/trace/ruler.cpp
+++ b/pv/views/trace/ruler.cpp
@@ -283,7 +283,7 @@ void Ruler::paintEvent(QPaintEvent*)
 		const int rightedge = width();
 		const int x_tick = tick.first;
 		if ((x_tick > leftedge) && (x_tick < rightedge)) {
-			const int x_left_bound = QFontMetrics(font()).width(tick.second) / 2;
+			const int x_left_bound = util::text_width(QFontMetrics(font()), tick.second) / 2;
 			const int x_right_bound = rightedge - x_left_bound;
 			const int x_legend = min(max(x_tick, x_left_bound), x_right_bound);
 			p.drawText(x_legend, ValueMargin, 0, text_height,
diff --git a/pv/widgets/timestampspinbox.cpp b/pv/widgets/timestampspinbox.cpp
index fea8175e..01424a5b 100644
--- a/pv/widgets/timestampspinbox.cpp
+++ b/pv/widgets/timestampspinbox.cpp
@@ -76,7 +76,7 @@ QSize TimestampSpinBox::minimumSizeHint() const
 {
 	const QFontMetrics fm(fontMetrics());
 	const int l = round(value_).str().size() + precision_ + 10;
-	const int w = fm.width(QString(l, '0'));
+	const int w = util::text_width(fm, QString(l, '0'));
 	const int h = lineEdit()->minimumSizeHint().height();
 	return QSize(w, h);
 }
-- 
2.24.0.rc2

